SOLUTION: Two burgers and three orders of fries cost $6.50. Six burgers and five orders of fries cost $15.50. What is the price of an order of fries

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Question 833343: Two burgers and three orders of fries cost $6.50. Six burgers and five orders of fries cost $15.50. What is the price of an order of fries
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
We could solve this as:
Let x be the price of burgers and y be the price of fries. Set up two equations.
2x+3y=6.50
6x+5y=15.50
Multiply the first by -3 to get:
-6x-9y=-19.50
6x+5y=15.50
Add these two equations to get:
-4y=-4
y=1 Plug this into the original equation to get:
x=1.75
There we go, burger cost $1.75 and fries are $1
Make sense?
RJ
www.math-unlock.com